John Crowell

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Friendswood, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus and method for generating a seismic source signal
- Patent number 7,987,943
- Issue date Aug 2, 2011
- Inova Ltd.
- Zhouhong Wei
- G01 - MEASURING TESTING
Information Patent Grant
Apparatus and method for generating a seismic source signal
- Patent number 7,628,248
- Issue date Dec 8, 2009
- Input/Output, Inc.
- Zhouhong Wei
- G01 - MEASURING TESTING
Information Patent Grant
Three axis seismic vibrator
- Patent number 5,666,328
- Issue date Sep 9, 1997
- I/O Exploration Products (U.S.A.), Inc.
- John Mark Crowell
- G01 - MEASURING TESTING
Information Patent Grant
Removable piston bore liner for hydraulically actuated seismic vibr...
- Patent number 5,401,919
- Issue date Mar 28, 1995
- Western Atlas International, Inc.
- John M. Crowell
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information Patent Grant
Pre-loaded vibrator assembly with mechanical lock
- Patent number 4,718,049
- Issue date Jan 5, 1988
- Western Atlas International, Inc.
- John M. Crowell
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
Apparatus and Method for Generating a Seismic Source Signal
- Publication number 20100071989
- Publication date Mar 25, 2010
- INPUT/OUTPUT, INC.
- Zhouhong Wei
- G01 - MEASURING TESTING
Information Patent Application
Apparatus and Method for Generating A Seismic Source Signal
- Publication number 20070240930
- Publication date Oct 18, 2007
- INPUT/OUTPUT, INC.
- Zhouhong Wei
- G01 - MEASURING TESTING